Lots of youtubers are in Tokyo now…Panasonic announcement?

One of our readers noticed this:

Damien Bernal and French Reviewers are in Tokyo right now.
Chris and Jordan from Dpreview seem to be at the same place too.
Source: latest stories of Damien Bernal today : https://www.instagram.com/damien.bernal/?hl=en

On Damiens story it looks like I can see Lumix ambassador Sean (his youtube channel is here) and Robin Wong (his youtube channel here). So this might be a Panasonic announcement?